Fantasy Football season is fast approaching :), what better way to introduce your friends to cryptocurrency than through the most popular computer game around.
The quick transfer of money possible with decentralized currency will no doubt impress anyone who participates. Doing small things like this are good ways to show off the benefits trustless systems like the blockchain.
Great idea-I am terrible at it, but can see how useful it might be to use bitcoin for the buy in (and weekly prizes).